What this UHF reader is and where it fits
The Siemens 6GT2811-4AA00-0AA0 is an RF600-series UHF RFID reader operating in the 865–868 MHz band. It reads and writes EPCglobal Class 1 Gen 2 / ISO 18000-6C transponders. The IP65-rated aluminum/ABS housing (silver/anthracite) mounts directly on a conveyor frame, gantry, or portal without a secondary enclosure. This reader connects to the host controller via an M12 8-pin RS422 interface, supporting cable runs up to 100 m — enough to place the reader at the read point and the controller in a remote cabinet. It accepts up to two external antennas on RP-TNC connectors, with antenna cable lengths from 1 m to 40 m, giving flexibility to position antennas for optimal tag coverage around pallet lanes, dock doors, or work-in-progress buffers.
Key ratings and what they mean for deployment
The 6 m read range is the specified maximum under typical conditions, but the system manual documents extended ranges achievable with higher-gain antennas or higher transmit power settings. The adjustable transmit power from 65 mW to 500 mW (ERP) lets you tune the read zone — lower power to isolate a single read point in a dense reader environment, higher power to cover a wider portal. Multitag capability is built in, so it handles pallet-level reads with multiple transponders in the field simultaneously. The 24 VDC supply (21.6–30 V range) draws 0.47 A maximum, 0.395 A typical — a modest load that a standard industrial power supply handles without issue. The 3-color LED gives at-a-glance status: power, communication activity, and read events. The VESA 100 mounting pattern (4× M4 screws) matches standard display and panel-mount hardware, simplifying retrofit into existing enclosures or pedestal mounts. MTBF is listed at 18 years. The operating temperature range is -25 °C to +55 °C; below -20 °C a 10-minute warm-up is required.
Integration notes for the panel and site
The reader is silicon-free, which matters for clean-room or paint-shop environments where silicone outgassing can cause adhesion or coating defects. The 52 mm depth keeps the profile low enough to fit inside a shallow enclosure or behind a panel door without protruding.